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Posted to issues@kylin.apache.org by "Dong Li (JIRA)" <ji...@apache.org> on 2015/11/02 02:58:27 UTC

[jira] [Updated] (KYLIN-1099) Support dictionary of cardinality over 10 millions

     [ https://issues.apache.org/jira/browse/KYLIN-1099?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dong Li updated KYLIN-1099:
---------------------------
    Attachment: 2.x-0001-KYLIN-1099-Support-dictionary-of-cardinality-over-10.patch
                1.x-0001-KYLIN-1099-Remove-dedup-in-dictionary-value-enumerat.patch

Patch for 2.x submitted, also have a patch for 1.x to optimize some perf.

> Support dictionary of cardinality over 10 millions
> --------------------------------------------------
>
>                 Key: KYLIN-1099
>                 URL: https://issues.apache.org/jira/browse/KYLIN-1099
>             Project: Kylin
>          Issue Type: Bug
>            Reporter: liyang
>            Assignee: liyang
>         Attachments: 1.x - 0001-KYLIN-1099-Support-dictionary-of-cardinality-over-10.patch, 1.x-0001-KYLIN-1099-Remove-dedup-in-dictionary-value-enumerat.patch, 2.x-0001-KYLIN-1099-Support-dictionary-of-cardinality-over-10.patch
>
>
> Many use cases involve columns with high cardinality over 10 millions. Dictionary should be supported on these columns assuming mem is sufficient.



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